telebit.js/installer/get.sh

#!/bin/bash
#<pre><code>

set -e
set -u

###############################
#                             #
#         http_get            #
# boilerplate for curl / wget #
#                             #
###############################

# See https://git.coolaj86.com/coolaj86/snippets/blob/master/bash/http-get.sh

export _my_http_get=""
export _my_http_opts=""
export _my_http_out=""

detect_http_get()
{
  set +e
  if type -p curl >/dev/null 2>&1; then
    _my_http_get="curl"
    _my_http_opts="-fsSL"
    _my_http_out="-o"
  elif type -p wget >/dev/null 2>&1; then
    _my_http_get="wget"
    _my_http_opts="--quiet"
    _my_http_out="-O"
  else
    echo "Aborted, could not find curl or wget"
    return 7
  fi
  set -e
}

http_get()
{
  $_my_http_get $_my_http_opts $_my_http_out "$2" "$1"
  touch "$2"
}

http_bash()
{
  _http_url=$1
  my_args=${2:-}
  rm -rf my-tmp-runner.sh
  $_my_http_get $_my_http_opts $_my_http_out my-tmp-runner.sh "$_http_url"; bash my-tmp-runner.sh $my_args; rm my-tmp-runner.sh
}

detect_http_get
export http_get
export http_bash

###############################
##       END HTTP_GET        ##
###############################

if [ -e "installer/install.sh" ]; then
  bash installer/install.sh "$@"
else
  http_bash https://git.coolaj86.com/coolaj86/telebit.js/raw/branch/master/installer/install.sh "$@"
fi